Problems from 2021 ICPC North America Regional Programming Contests (March 5 2022)

Name
Fastest
Shortest
Total
Acc.
Ratio
Difficulty
Languages
Archery Accuracy0.018711363526%7.0Harden
Average Character0.0054201173241%1.8Easyen
Black and White0.0759242117943%4.8Mediumen
Circle Bounce0.0020021511051%4.9Mediumen
Diagonals0.0018532046733%7.2Harden
Dorm Room Divide0.03580157519412%6.9Harden
Double Password0.0054128239358%1.5Easyen
Fail Them All!0.0089946111024%8.2Harden
Hopscotch 5000.1187864313821%7.3Harden
Overdraft0.0052932120841%2.1Easyen
Problem Set Construction0.01940804050%7.0Harden
Reversibly Cyclic Strings0.00567730245%3.2Mediumen
Rise and Fall0.0088111526624%4.6Mediumen
Scaling Recipe0.005187986246%1.9Easyen
Shortest Missing Subsequences0.0939435911733%5.9Harden
Square Bounce0.005031645433%6.3Harden
Tetris Generation0.0090121629724%6.0Harden
Tournament Seeding0.0322050622544%4.0Mediumen
Tree Hopping0.0289397228529%6.4Harden
Who Goes There?0.00119125040332%3.9Mediumen
XOR Island0.0029130010334%7.0Harden